/*
 * Copyright 2015-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.rsocket.transport;

import java.util.Map;
import java.util.function.Supplier;

/**
 * Extension interface to support Transports with headers at the transport layer, e.g. Websockets,
 * Http2.
 */
public interface TransportHeaderAware {

  /**
   * Sets the transport headers
   *
   * @param transportHeaders the transport headers
   * @throws NullPointerException if {@code transportHeaders} is {@code null}
   */
  void setTransportHeaders(Supplier<Map<String, String>> transportHeaders);
}
